"One carat of diamonds is extracted from one ton of kimberlite, which itself
is extracted from ten thousand tonnes of rock!" Diamond mines typically remove
many tons of diamond-bearing rock to produce a one-carat gem-quality polished
diamond. In most cases, the material is removed through an open-pit mining
process that destroys ecosystems, pollutes the environment and make an adverse
social impact on indigenous communities inhabiting areas where mines are
situated.